Central wave reflection is associated with peripheral arterial resistance in addition to arterial stiffness in subjects without antihypertensive medication

Table 3 Linear regression analysis with backward elimination: haemodynamic variables as explanatory variables for augmentation index

Augmentation index	b	beta	95 % Confidence interval of beta		P value
			Lower	Upper
Male subjects, R² = 0.381, p < 0.001
Systemic vascular resistance index	0.008	0.425	0.255	0.595	<0.001
L_g10 (pulse wave velocity)	47.384	0.409	0.275	0.543	<0.001
Stroke volume index	0.434	0.256	0.104	0.407	0.001
Heart rate	-0.179	-0.150	-0.299	0.000	<0.049
Female subjects, R² = 0.317, p < 0.001
L_g10 (pulse wave velocity)	55.253	0.400	0.275	0.541	<0.001
Systematic vascular resistance index	0.006	0.336	0.157	0.515	<0.001
Stroke volume index	0.434	0.278	0.114	0.442	0.001
Heart rate	-0.199	-0.156	-0.303	-0.010	0.036

Variables used: Systematic vascular resistance index, the common logarithm of PWV, heart rate, stroke volume index. Lg10, the common logarithm

ISSN: 1471-2261